SOLUTION: factor the expression completely:
x^4-9x^2
please help me as as u cannnnnnnnnnnnnnnnn
waiting for replyyy
Algebra.Com
Question 446368: factor the expression completely:
x^4-9x^2
please help me as as u cannnnnnnnnnnnnnnnn
waiting for replyyy
Found 2 solutions by mananth, nerdybill:
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
Difference of two squares ( Identity)
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
Think "difference of squares"...
.
x^4-9x^2
x^2(x^2-9)
can be rewritten as:
x^2(x^2-3^2)
x^2(x-3)(x+3)
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